Turbulent Heat and Momentum Transports in an Infinite Rod Array

[+] Author and Article Information
An-Shik Yang, Ching-Chang Chieng

National Tsing Hua University, Hsinchu, Taiwan 300, Republic of China

J. Heat Transfer 109(3), 599-605 (Aug 01, 1987) (7 pages) doi:10.1115/1.3248130 History: Received October 24, 1984; Online October 20, 2009


An anisotropic factor is carefully selected from eleven distributions and adopted to the k –ε two-equation model of turbulence to obtain detailed velocity and temperature fields for steady-state, fully developed turbulent flow through infinite triangular/square rod array. The present study covers the ranges of pitch-to-diameter ratio from 1.123 to 1.5, and Reynolds number from 2.4 × 104 to 106 . Velocity and wall shear stress are calculated and compared to experimental data. Normalized fluid temperature, friction factor, and heat transfer coefficient are also computed. The correlations of friction factor and heat transfer coefficients for flow inside circular pipe and flow through finite rod arrays are compared with the results for flow through infinite rod arrays.

Copyright © 1987 by ASME
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